ESO 140-43
Observation
| Spectrum ID | 478399456_sp2 |
|---|---|
| Alt name | g1844540-622153 |
| z | 0.0139 |
| RA, Dec | 281.2249, -62.3647 |
| MJD | 59500.38 |
| SNR/Å B/R | 9.8/21.9 |
| Obs Airmass | 1.23 |
| SMSS ID | 478399456 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.4 ± 0.1 |
| 2MASS Kext | 9.7 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.093 |
| Power law αν | -1.64 ± 0.19 |
| log L5100,AGN | 42.94 ± 0.02 |
| log HβBr/[O III] | -0.04 ± 0.04 |
| log ML5100/M☉ | 7.35 ± 0.09 |
| log MHα/M☉ | 7.03 ± 0.04 |
| log MHβ/M☉ | 7.31 ± 0.10 |
| log M[O III]/M☉ | 7.47 ± 0.09 |
Spatial extraction & sky subtraction region
Spaxel scale: 1 arcsec² — Flux units: erg s⁻¹ cm⁻² Å⁻¹
Apertures: object (solid), background (dashed)
Spectrum decomposition
Emission line measurements
| Line | log L (erg s⁻¹) | FWHM (km s⁻¹) | σ (km s⁻¹) | EW (Å) |
|---|---|---|---|---|
| Hγ Narrow | 39.58 ± 0.19 | 287 ± 63 | 208 ± 39 | 2.05 ± 0.61 |
| Hγ Broad | 40.40 ± 0.10 | 1639 ± 480 | 598 ± 173 | 12.43 ± 0.93 |
| [O III] 4364 | 39.41 ± 0.18 | 264 ± 63 | 111 ± 25 | 1.44 ± 0.35 |
| He II Narrow | 39.43 ± 0.17 | 264 ± 63 | 111 ± 25 | 1.53 ± 0.29 |
| He II Broad | 40.26 ± 0.28 | 1854 ± 1677 | 787 ± 712 | 8.33 ± 0.77 |
| Hβ Narrow | 40.07 ± 0.08 | 287 ± 63 | 208 ± 39 | 6.76 ± 0.49 |
| Hβ Broad | 41.07 ± 0.04 | 2825 ± 268 | 1151 ± 198 | 68.87 ± 1.03 |
| [O III] 5007 | 41.11 ± 0.01 | 287 ± 63 | 208 ± 39 | 74.83 ± 0.50 |
| He I Narrow | 39.06 ± 0.18 | 264 ± 63 | 111 ± 25 | 0.70 ± 0.16 |
| He I Broad | 40.32 ± 0.06 | 2763 ± 417 | 1173 ± 177 | 12.65 ± 0.56 |
| [O I] 6300 | 39.52 ± 0.06 | 264 ± 63 | 111 ± 25 | 2.13 ± 0.16 |
| Hα Narrow | 40.63 ± 0.01 | 264 ± 63 | 111 ± 25 | 27.40 ± 0.25 |
| Hα Broad | 41.75 ± 0.01 | 2163 ± 87 | 1083 ± 31 | 356.36 ± 0.73 |
| [N II] 6585 | 40.55 ± 0.02 | 264 ± 63 | 111 ± 25 | 22.41 ± 0.22 |
| [S II] 6718 | 40.07 ± 0.02 | 264 ± 63 | 111 ± 25 | 7.64 ± 0.18 |
| [S II] 6732 | 40.04 ± 0.02 | 264 ± 63 | 111 ± 25 | 7.15 ± 0.18 |
All narrow line widths are tied to narrow [O III] 5007Å. [O III] 5007Å and narrow Hβ include a second narrow component not tied to other narrow lines.
Emission summary
| Hα Broad SNR | 38.10 |
|---|---|
| Hβ Broad SNR | 9.38 |
| Hγ Broad SNR | 3.71 |
| AGN frac | 0.76 |
| Host frac | 0.23 |
| log L5100,Host | 42.43 |
| Fe II/Hβ | 0.36 |
| Fe II/[O III] | 0.34 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 0 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.